Metallic hose.



J. J. A. MILLER.

METALLIC HOSE.

APPLIGATION FILED JULY21, 1911.

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JOHN J'. A. MILLER, 0F DENVER; COLOR/ADO..

METALLIC nosa.

Specication of Letters Patent.

atenied Mar.. 18,1913..

Application filed July 21, 1911; Serial No. efil To f//z' lwhom, it may concern:

lie itv known that I, Jol-1N J. A. Minimi,

a citizen ot the United States of America,

residing at the city and county of Denverand State of Colorado, have invented a new and useful Metallic Hose, of which the folliti lowing is a specification.

This invention relates to metallic hose.

'l`hc object ot the invention is to provide a conduit metallic hose. Further, to provide a flexible metallic hose composed of a pair oi' spirally wound wires, one of which is provided with substantially semi-circular grooves on opposite sides throughout its length, to receive the curved surface of the other wire, the wires being wound to it tightly to each other and thus provide ahose which is both kliquid tight and air tight. These objects are accomplished by the character of hose illustrated in the accompanying drawings, in which:

Figure l, is a side view of a portion of a hose .constructed in accordance with my invention, an ordinary nozzle being suitably secured in one end of the same. Fig. 2, is a view on an enlarged scale of a portion of a hese, showing the same partly in side View and partly in longitudinal section, the same being constructed ot wire which is round in cross section. Fig. 3, is a longitudinal-sectional viexv of a portionl of hose, which is made up oi one wire which is round in cross section, and one which is flat on opposite sides. Fig. 4, is a similar view showing a hose constructed of wires, both of which are flat on opposite sides. Figs. 5 and 6, are enlarged cross sections of round wire used in producing the style of hose shown in Figs. l and 2. Figs. 7 and 8, are enla-urged cross sections of flat wire used in producing the style of hose shown in Fig. 4. And Fi s. 9 and 10, are enlarged cross sections of i at wire, the opposite sides of which are grooved 'for the sake of lightness.

Similar letters of reference' refer to similar parts throughout the several views.

Referring to t-he accompanying drawings, l indicates the preferred form of hose, which is formed oit wires 2 and 3, the wire 2 being round in cross section, while the wire 3 is provided on oppositesides throughout its entire length with grooves or channels 4:, of curvature in cross section to tit the cross section curvature of the round wire 2, so that when the wires are closely wound, the coils of round wire will lie within the grooves of the coils of-the other wire, the coils of gmoved wine alternating with. thoseI of the roundwire, as will be understood.

In Fig. 3, a fiat wire 5, having grooved edges 6, isused in connection with the round wire 2, while in Fig. 4, the hose is constructed entirely of flat wires 7 and 8, the wires 7 having rounded edges 9, While the wire 8 has grooved edges 10, adapted to receive the round edges of the wire 7. The wires may be wound in pairs, the coils being pressed together, as the winding proceeds,

or one of the wires may first be wound, leaving spaces between its coils of such width as to require the springing of the second wire between the coils of the first, when the second wire is wound, thus insuring a pressure" contact of the coils. The tendency of the coils to expand will also cause them to engage each other so as to form tight joints between them.

A nozzle 11, is secured in one end of the hose, in any suit-able manner, while the other end of the hose is supplied with a coupler, not shown.

The wires may be of any. suitable metal or metal alloy, or one wire may be made of wire and the other of any suitable material in a wire form .capable of bein spirally wound and of retaining its spiral orm, and the two strands of wire, where metal wire is used, may be composed of wires of the same or of different metals. Thus both may be steel or oney of the strands may be steel wire while the other may be soft iron, brass or copper wire, or 'any other suitable material, and when wound as before described, the coils will press against each other, the round Wire 2 fitting in the channels of the wire 3, closing'the joints between the coils so as to torm a flexible and water-tight structure.

-Figs 9 and 10 illust-rate cross-sections of 'lat strands 12 and 13, which are channeled on their opposite sides, as shown at le and 15, to produce a-lighter hose than can be made from either the round or flat wires.

A hose thus constructed is not only strong and durable., but can be easily and cheaply manufactured.

Having described my invention, what l claim as new and desire to secure by Letters Patent,.is: i

In a flexible met-al hose, the combination of two independent spirally wound round wires of the same diameter, and of the saine spiral`pitch, one 0f which has a spiral groove its opposite' www. 1m

JQQHN mm.

Witnesses G. @ARGENT ELMQTT, mELLA FGWM. 

